Appearance
The plant forms a mat of foliage about 10 cm high and 50 cm or more wide, with many heart- or kidney-shaped leaves. Deep purple or blue, funnel-shaped, 5-petalled flowers, 2 cm long, are borne in profusion, completely covering the plant from mid- to late summer.Flowers may be pollinated by beetles, flies, bees and butterflies, but are also capable of self-pollinating.
The Latin specific epithet "portenschlagiana" commemorates the Austrian naturalist Franz von Portenschlag-Leydermayer.
Uses
"Campanula portenschlagiana" is an alpine plant requiring sharp drainage, so is suitable for an alpine garden, rock garden, or as groundcover, in sun or partial shade. Given suitable conditions, it will rapidly colonise cracks and crevices in walls and pavements. It is hardy to USDA hardiness zone 3.This plant has gained the Royal Horticultural Society's Award of Garden Merit.
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